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W. S. IRELAND ANDW. E. LIPPERT.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. I8. |916. 1,316,839. Patemedsept. 23,1919.

2 SHEETS-SHEET 1.

TNVENTQRSJ W. wenn@ W. S. IRELAND AND W. E. LIPPERT.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. 18, |916.

1,316,839.. Patem-edsept. 23, 1919.

2 SHEETS-SHEET 2.

Writing Machines,

WARD S. XRELAND, F ST. LGU'IS, MSSOURI, OHI, ASSIGN'ORS, BY DIRECT AND ME HAND MACIHNE COMPANY, OF ST.

A ND WALTER E. LIPPERT, OF CINCINNATI,

SNE ASSIGNMENTS, TO N ATIONAL SHORT- LO'UIS, MISSOURI, A. CORPORATION OF DELAWARE.

TYPE-VRITING MACHENE.

Specification of Letters Patent.

Patented Sept.. 23, 19H9.

Application led November 18, 1916. Serial No. 132,065.

To all whom t may concern Be it known that we, WARD S. IRELAND and WALTER E. Lrrrnn'r, citizens of the United States .of America, residents, re-

spectively, of the city of St. Louis, State ofl Missouri, and of Cincinnati, in the county of `Hamilton, State of Ohio, have invented cer- This invention relates to improvements liti in typewriting machines, and more particularly to paper feeding mechanism adapted for use in shorthand machines. A

Une of the objects of the invention is to produce 'a strong, simple and accurate paper feeding device adapted to cooperate with the finger keys of a Shorthand machine, and adapted to yieldto prevent the paper from being torn when it is gripped between the printing elements, or otherwise restrained, duringl the operation of the paper feeding device. With this object in view the preferred form of the invention comprises printing elements adapted to grip the paper, a universal bar movable in synchronism with sa'id printing elements, and a yieldable paper feeding device operable by the universal bar. The universal free to move after the paper has been gripped by the printing elements, and the paper feeding device, which partakes of the movements of the universal bar, includes a transmission member which yields after the paper has lbeen restrained by the printing elements, thus preventing the paper feeding device from tearing or yotherwise injuring the paper. v l

Vith the `foregoing and other objects in view the invention comprises the novel construction, combination andarrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings wherein is shown the preferred embodiment of the invention; however, it is to be understood that the invention comprehends changes, variations and modifications which come within the scope of the claims hereunto appended.

Figure I is a longitudinal section of a shorthand machine embodying the features of this invention.

jpaper and the friction bar is, preferably,

Fig. H is a detail view showing the roll of elements associated therewith.

Fig. Hl is an enlarged side elevation illustrating the universal bar and the paper feeding device.

Fig. IV is a fragmentary ysection taken approximately on the line IV-lV,Fig. Ill.

Fig. V is a detail view of the ratchet wheel which forms part of the paper feeding device.

Fig. VI is a detail view of the paper feeding wheel associated with the ratchet wheel.

To illustrate the preferred form of the iuvention, we have shown a short hand ma chine provided with a housing l, a tvpr holder 2 arranged in said housing Figfl). a type bar3 in said type holder, and an int;

ing ribbon i adjacent to the linel of type on the type 'bar rThe paper passes from a supply roll A, over a` roller under and' partially around a roller 5, in front of and over an uncurling device 6, and then to a paper feeding device whereby it is unwound from the roll and fed through an opening' 7 at the rear of the machine.

The key actuating devices preferably in clude a series of angular levers each having an upwardly extending arm 8 at its front end and a character key 9 at the upper end 'of saidv arm. Any suitable shorthand code may be used and if desired the keys may be provided with characters corresponding to the line of type characters on the type bar 3 as is'well understood in this art. Each key lever includes an arm 10 extending rear- .Wardly from itsr arm 8, an arm 1l extending upwardly from the rear portion of said arm 10. The Series of key levers is pivotally supported by a pivot member l2 located at the junctions of the lever arms 10 and l1. The upper end of each lever arm. 1l is provided with a forwardly extending printing hammer 13 which lies adjacent to the type 3 as shown in Fig. I. Restoring springs 14 tend to retain the key levers in an engagement wit-h abutment 15.

When one of the finger keys 9 is depressed, the key lever associated therewith turns about the axis of the pivot member l2 and a printing hammer moves toward the type 3, thereby forcing the paper and inking ribbon toward the type and printing one of the type characters on the paper. The key titi levers may be operated independently of each other, or any desired number of key levers may be operated simultaneously.

The universal bar associated with the key levers includes a transverse abutment holder 18 (Figs. I, HI and IV) arranged in front of the lever arms 11 and provided with a suitable abutment 19 which engages all of said lever arms. The universal bar also includes a pair of arms 20 and 20 pivotally supported by the pivot member 12 and secured near their upper ends to the transverse abutment holder 18. 22 designates a connecting member uniting the arms 2O and 20 of the universal bar, said connecting bar being located at the rear of the lever arms 11. 23 designates. a restoring spring (Fig. I) tending to retain the universal bar in the position shown in the drawing. -The transverse abutment 19, forming part of the universal bar structure is so arranged that the universal bar will move in response to movements of any one of the key levers.

The paper feeding device preferably comprises a rotatable shaft 24, a pair of feed wheels 25 and 25 fixed to said shaft, a ratchet Wheel 26 loosely 'fitted to the shaft, and a pawl carrier 27 loosely fitted to said shaft. 28 designates a pawl (Fig. H1) pivoted to the pawl carrier 27, and 29 designates a spring connecting said pawl to the pawl carrier. The spring 29 ltends to force he pawl into engagement with the ratchet wheel 26, as shown by dotted lines in Fig. III. The arm 2O of the universal bar is provided with an extension 30 (Figs. III and 1V) which ooperates with an arm 31-on the pawl carrier 27. A spring 32, secured to the universal bar, forces the arm 31 into engagement with the universal bar extension 30, said arm 31, being.provided with a pad which bears against said extension, as seen in Fig. lll. The arm 31, extending from the pawl carrier, is so arranged between the lspring 32 and universal bar extension that the pawl carrier will partake of the movements of the universal bar. It will now be understood that the pawl carrier 27 as well as the universal bar, is under the. control of the key levers, and that the pawl carrier is adapted to oscillate in response to movements of said key levers.

The strip of paper is preferably perforated, as shown in Fig. H, to receive the teeth which project from the feed wheels 25 and 25. The feed wheel 25 is recessed (Figs. IV, V and Vl) to receive a boss 34 and pins 35 which extend from one side of the ratchet wheel 26. 36 designates compression springs located in the recesses 37, each of said springs being located between a pin 35 and a wall of one of the recesses. Under normal conditions the springs 36 transmit movement from the ratchet wheel 26 to the feed wheel 25 and shaft 24; however, when the paper is caught by the printing elements, or restrained in any other manner, the springs 36 will yield to prevent the paper from being torn 'by the paper feeding device.

When a key is depressed, or when several keys are depressed simultaneously, the universal bar moves forwardly about the axis of the pivot member 12 andthe pawl carrier 27 turns about the axis of shaft 24 so as to advance the ratchet wheel 26 one step, thereby turning the feed wheels 25 and 25 to unwind the paper and advance it one step. At the end of the paper feeding operation, the printing'hammer or hammers 13 force the paper and 'inking ribvbon toward the type and print the selected character or characters. After the paper and inking ribbon have been gripped between the type and hammers the latter will move a slight distance to insure the desired printing action. During this final movement the universal bar continues to move with the lever arms 11 and the pawl carrier 27 and ratchet wheel 26 move with the universal bar. At this time the ratchet wheel moves independently of the paper feeding wheels, the springs 36 being compressed in the recesses 37.

.. The type bar 3 is preferably yieldingly supported in the type holder 42, a piece of rubber 40 or other yielding material being interposed between the type bar and a wall of the type holder. The type is therefore free to adjust itself to the type hammers during the printing operations, and although the type hammers and universal bar move an appreciable distance while the paper is held 'by the printing elements, this additional movement is not transmitted to the paper feeding wheels, the springs 36 being adapted to compensate. for such movement 4as previously described.

41 designates a yieldable stop (Fig. l) adapted to be engaged by the member 18 of the universal bar during the printing operations. This yielding stop prevents the universal bar from being thrown away from the lever arms 11 during the key operations, and it does not materially retard the movement of said lever arms during the printing operations when the 4type bar is forced backwardly into the type holder.

The inner end of the strip of paper is rmly secured to a core 42 (Figs. l and ll) provided at its ends with friction members 43 and 44.- which turn with the rollof paper. A friction mem-ber 45. engaging the friction member 43, isrigidly secured to a. stationarvarin- 46. 47 designates a yieldable friction member slidably fitted to a spring pocket at the lower end of a stationary arm 48. A spring 49 forces the friction member 47 into engagement with the friction member 44, at the same time forcing the friction inemthe paper is uncurled and fed ber 43 into engagement `vvith the stationary friction member 45. The spring-pressed friction elements tend to prevent the roll of paper from turning, and upon the operation of the paper feeding device the paper is pulled along the uncurling device 6 (Fig. I), said uncurling device being a small rod fixed to stationary parts of the machine. In passing over tothe uncurling device, the strip of paper is turnedv abruptly ina direction opposed to the direction in which it was Wound on the roll. By holding the paper under tension and pulling it over the uncurling device in the manner illustrated,

chine in an absolutely straight condition.

At the end of each printing operation, when the type bar 3 is forced backvvardly in the type holder, the strip of paper will be pulled a slight distance Without tearing, such movement 'being .permitted by the yielding devices which paper.

A retainin pawl 50 (Fig. I) is fitted to a ratchet wheelgl to prevent retrograde `movement of the ratchet Wheel being secured to the shaft24. The printing elements herein shown are claimed in an application for patentfiled by Ward S. Ireland on Nov. 18, 1916, Serial No. 132,076. The key lever guide is claimed in an application filed byWard S. Ireland and W. E. Lippert on Nov. 18, 1916, Serial No. 132,077. The universal bar is .claimed in an application filed by W. S. Ireland and W. E. Lippert on Nov. 18, 1916, Serial No. 132,078. The'paper straightenerv is claimed in an application filed by W. S. Ireland on May 19, 1917, Serial No. 169,620. Reference is also made kto an application filed by W.. S. Ireland and W. E. Lippert on Nov. 18, 1916, Serial No. 132,066,.Wherein We have shown and claimed some of the details of construction of the paper feeding device.

We claim:

1. In a feeding device for typewriting ma-` chilies, the combination of a universal bar,

a rotary drive member operable bv said uni-` versal bar, a rotary driven member, and a vieldable device for transmitting movement from said rotary drive member to said rotary driven member. i

2. In a feeding device for typevvriting machines, the combination of a universal bar, a

rotary drive member operable by said universal bar, al rotary driven'k member, and a vieldable device for transmitting movement from said rotary drive member to said r0- tary driven member, said yieldable device being movable'in a circular path with said members. 3. In a typevvriting machine adapted' to receive a strip of paper, printing elements adapted to grip the paper, Va universal bar movable in synchronism with said printing from the ma-`- support the rollof' paper feeding Wheels, said the aXis of said drive member,

. being located between the 'adapted to grip the paper, a universal bar movable in 'synchronism with said printing elements, and a paper feeding device inc-luding a rotary drive member operable by said universal bar,la rotary driven member, and a yieldable device for transmitting movement from said rotary drive member to said rotary driven member, said yieldable device beinv movable in a circular path with said 1116111 BI'S.

5. In a typewriting machine adapted to receive a strip of paper, printing elements adapted to grip the' paper, a universal bar movable in synchronism .with said printing elements, and a paper feedin device including a drive member operab e by said universal bar, a Vdriven member movable about and a yieldable device for transmittin movement from said drive memberto said riven member.

6. In a typewriting machine adapted to receive a strip of paper, printing elements adapted to grip the paper, a'universal bar movable iii synchronism with said printing elements, and a paper feeding device including a drive Wheel movable step by ste in response lto movement of said universal al', a driven Wheel, and a yieldable device for transmittin movement from said drive wheel to said driven Wheel.

7. In a typewriting machine adapted to receivev a strip of paper, printing elements adapted to `lgrip the paper, a universal'bar movable in synchronism With said printing elements, and a papenfeeding' device including adrive Wheel operable bysaid universal bar, paper feeding wheels adapted to engage the paper and a yieldable device for transmitting movement from said drive Wheel to said driven Wheel.

8. In a typevvriting machine adapted to receive a strip of paper, printing elements adapted to grip the paper, a. universal bar movableV in synchronism with said printing elements, and a paper feeding device including a rotary drive member operable by said universal bar, a rotar-y driven member, and a yieldable device for transmitting .movement from said rotary drive member to said rotary driven member, said yieldable device adjacent side faces of said drive and driven members.

9. In a"typewriting machine adapted t0 receive a strip'of paper, printingv elements adapted to grip the aper, a universal bar movable in synchronism with said printing elements and a paper feeding device includ-- ing a ratchet wheel operable by'said universal bar, a paper` feeding Wheel, and a spring for transmitting movement from said ratchet Wheel to said paper feeding Wheel.

10. In a typewriting machine adapted to receive a strip of paper, printing elements adapted to grip the paper, a universal bar movable in synchronism With said printing elements, and a paper feeding device including a drive Wheel operable by said universal bar, a driven Wheel, one of said Wheels being provided with a recess and the other being rovided with a projection which extends,

into said recess, and a yieldable device arranged between said projection and a Wall of said recess so as to transmit movement from said drive Wheel to said driven Wheel.

11. In a typewriting machine adapted to receive a strip of paper,` printing elements adapted to grip the paper, a universal bar movable in synchronism With said printing elements, and a 'paper feeding device including a rotatable shaft, a pair of paper feeding Wheels fixed to said shaft, a drive mem,- ber loosely fittedto said shaft, said drive member being operable by said universal bar, and a yieldable device for transmitting movement from said drive member to said shaft.

WARD S. IRELAND. WALTER E. LIPIERT. 

